Plowing-machine.



A. C. LINDGREN.

PLOWING MACHINE.

APPLICATION FILED NOV. 29. 1913.

Patented. Sept. 28, 1915.

2 SHEETS-$HEET l- MIC? 62mm 8 wvwwtoz An: 50.. WASH A. C. LINDGREN.

PLOWING MACHINE.

APPLICATION FILED NOV. 29. 1913.

1,154,995. Patented se t. 28, 1915.

2 SHEETSSHEET 2. 2.9

TE STT ALEXUS o. LINDGREN, or MOLINE, ILLINOIS, ASSIGNOR TO MOLINE PLoW COMPANY,

A CORPGRATION or ILLINOIS.

BLOWING-MACHINE.

Specification of Letters Patent.

To all'wlzom it may concern: 7

Be it known that I, ALFxUs G. LINDGREN,

a citizen of the United States, residing at Moline, 'inthe county of Rock Island and State of Illinois, have invented certain new and useful Improvements in PlowingMachmes, of wlnchthefollowing Is a spec1f1ca tion, reference being had therein to the acwith front and rear furrow wheels, and a landside wheel, the rear furrow wheel is usually set at a slight inclination toward the furrow, in orderuto relieve the landside friction onathe plow body, and when the plow is elevated for transportation 0n the road or elsewhere, the rear furrow wheel will, owing to the angular position in which it wasset for plowing, cause the frame of the machine tos'wing around and take an angular position relative to the direction of travel, with the result that the land wheel will be dragged sidewise by the team, and the movement of. the plow will consequently be attended with diliiculties.

My inventionv provides for overcoming this difficulty,and it consists of means, operating when theplow is elevated out of action, to automatically and positively shift the furrow wheel from its furrowward inclination and setit' straight forward and parallel with the landside wheel, so that when the machine is drawn by the team oi'er roads, orfrom field to field, or at the ends of the furrow, the frame I and wheels will travel straight, without the. objectionable feature of dragging the landside Wheel sidelVlSe.

My invention may be embodied in many different detailed forms and constructions, that shown in the accompanying drawings being. merely one by way of example. Therefore it will be understood that the invention in its broader aspects is not limited to the particular embodiment shown, but may be variously changed and modified; and further it will be understood that the invention is not limited to anyparticular form or construction of the parts except in so far as such limitations are specified in the claims. r V I In the accompanying drawings, Figure 1 is a side elevation of a plowing machine having my invention embodied therein. Fig. 2 is a side elevation on an enlarged scale of the rear end ofithe machine; Fig. 3 is a top plan view of the same; Fig. a is a perspective view of the upper end of the rear furrow wheel stein; Fig. 5 is a perspective view of the bearing block for the rear furrow wheel, and the frame casting to which the block is pivoted, said parts being shown separated from each other; and Fig. 6 is a perspective view of a detail. Fig. 7 is a perspective view ofanother detail.

Referring tothe drawings, the frame of the machine comprises parallel frame bars 1, 1 connected together at their front ends and converging at their rear ends where they are firmly fixed to opposite sides of. a block or casting2. The frame is supported at its front on the furrow side by'a front furrow wheel 3 provided with an upright stem 4; mounted to swivel in a sleeve or socket 5 fixed to the frame. The upper end of the stem is provided with an arm 5 to which-the draft tongue 6 is connected and by which means the wheel is turned to the right or left by the team, and the machine guided. On its landside, the frame is sus tained by a landside wheel 7 mounted in suitable bearings on the frame bar "1 while at its'rear, the frame is sustained bya rear sustaining or furrow wheel 8 provided with an upright stem 9 mounted to swivel ina bearing block 10, connected with the rear end of the frame in the manner more fully described hereinafter. The stem 9 has fixed to'its upper endan arm 11 extending furrowward, .to which arm is pivoted a horizontal fore-andaft extending sleeve 12. Ihe rear end ofa rod 13 extends loosely through the sleeve and is provided on, its rear extremity with an adjustable head 14 between which and the rear end of the :sleeve, a spiral spring 15 bears, which spring tends to hold an adjustable shoulder 16 on a the rod, against the front end of the sleeve. This rod extends forwardly and. has its front end connected, with an arm 17 in the stem of the front furrow wheel, by which means the two furrow wheels are so connected together that the turning motion of rare rrion.

Patented Sept. 28,1915.

the front wheel by the draft team to the right or left, will guide the plow in the well known manner. 7

18 represents a plow beam carrying a mold board, plow, and connected with a front bail and a rear bail 19 respectively the rear bail only being shown, which bails are mounted in suitable bearings on the frame bars and extend forwardly, and are jointed dragging the landside wheel sidewise.

to the plow beam, suitable lever mechanism (not shown),beingemployed to raise and lower the beam, the elevation of the beam causing the bails to swing upwardly on their p votal connections with the frame,and the lowering ofthe beam causing the balls to swing downwardly, the bails thus guiding and sustaining the beam in its up and down movements. The foregoing parts may be of the usual and ordinary construction, and except in I so far as hereinafter indicated they forinno part of the present invention.

In the use of the machine in the field, it is. customary to set the rear furrow wheel at a slight inclination toward the furrow, the purpose of which is to cause the machine to travel straight forward parallel with the furrows, such'inclined position of the wheel acting to relieve the landsi de friction on the plowbody. Whenthe plow is raised out of action however, if'the furrow wheel remains in such inclined position, it will cause the frame of the machine toftake an angular position with the objectionable result of To .yercomethis objection I'provide means, which when the plow is raised, will automatically turn the furrow wheel from its inclineduposition,in a landward direction and cause it to occupy a position parallel with the landside wheel, the result being that inthe transportation of the machine over roads or through the field with the wardly extending arm 24:, the lower portion of which fitslooselyin a vertical slot 25 in the casting, while its upper portion extends upwardly beyond the casting and has jointedto it the rear end of a link 26 extending forwardly and pivoted as at 27 to the upper end of an arm 28 fixed to and prol' ecting upwardly from the rear bail just orward of its pivotal axis.

As a result of this construction and arrangement of the parts, when the plow is .tion in said figure. Owing to the fact that arm 11: on the stem of the furrow wheel, is held by sleeve. 12 and rod 13 against foreand-aft movement, the effect of the rearward movement of the bearing block will be to positively turn the stem therein, which turning action will shift the wheel in a landward direction and the wheel will be held in its shifted position. Nhen the plow is in its lowered position for operation the parts are so set and adjusted, as. hythe adjustable shoulder 16 on rod 13, thatv when the machine travels straight forward, the furrow wheel will incline somewhat toward the furrow as shown by full lines in Fig. 3.; and when the plow is raised, the wheel will by themechanism described, be positively and automatically swung around in a landward direction and will be held in a posit-ion parallel with the line of draft and with the landside wheel, as shown by dot-ted lines in Fig. l.

Owing to the disposition of the weight of the operator and frame forward of the pivotal axis 21 of the bearing block, and the support afforded by the furrow. wheel, back of said axis, considerable resistance will be offered to. the rocking of the hearing block in the manner described, and in order to avoid the use of unduly heavy connections from the rear bailto'the bearing block, I propose to utilize the lifting spring 29 with which plows o f this type are usually equipped for assisting in operating the hearing block. Usually this spring is connected at its forward end to the plow beam as at 30, and has its rear end conncctedto some fixed portion of the frame. I now connect the rear end of the spring to the upper end of an upright lever 31 pivoted midway between its endson a horizontal transverse axis in the slot 25 in casting 2, the lower end of the lever being in position to. bear against the lower curved end of the arm 24 before alluded to.. As a result of this: ar-' rangement and construction, when the plow is elevated, the tension of the spring acting on the upper end of the lever, will assist in the operation of rocking the bearing block. When the plow is lowered, the rear bail swinging downwardly on its axis will draw the link 26 forwardly and the bearing block will be rocked forwardto its former position, this action causing the furrow wheel stem to turn the wheel back toi'its former inclination furrowward. It will be seen therefore that while I secure the proper angle of the furrow wheel when the plow-is down in action, there will be no tendency of the'frame to shift around and-the landside wheel to drag 'sidewise, 'whenth'e plow s elevated for transportation orfor other pura tion for transporting the machine, a sustain ing wheel mounted on the frame and mo"- able to vary its angle relatively to the line of travel of the machine, and means for 2111-,

tomatically moving said wheel to vary its angle when the plow is raised to inoperative position, said means acting to hold the wheel in its changed position while theplow is in inoperative position for transportation.

2. In a plowing machine, the combination of a frame, a plow sustained thereby and movable upwardly to inoperative position for transportation, a sustaining wheel mounted on the frame and movable toward the land to vary its angle relatively to the line of travel, andmeans operating automatically on the upward movement of the plow in operative position, to shift the sustaining wheel toward the land and retain it in its changed position. 1

3. In a plowing machine, the combination of a frame, a plow sustained therebyand movable up and down, a rearsustaining wheel mounted on the frame, and means fol-automatically swinging said wheel toward the land when the plow is raised. I

i. In a plowing machine, the combination of a. frame, a plow sustained thereby and movable up and down, a rear sustaining wheel mounted on'the frame and movable to change its angle relatively to the line of travel of the machine, and means for controlling the movements of said wheel, said means operating when the plow is down to hold the wheel inclined toward the furrow,

and operating when the plow is raised to of a frame, a plow mounted thereon and movable up and down, a rear furrow wheel mounted on the frame to turn horizontally bodily on an upright axis, and suitable bearing block.

means operating when the plow is raised to POSllJH'BlY turn said wheel.

8. In a plowing machine, the combination of'a frame, aplow sustained thereby and movable up and down, a rear furrow wheel mounted on the frame, and meansoperating on the up and down movements of the plow, to automatically and positively vary the angle of the furrow wheel.

9. In aplowing machine, the combination of a frame, a plow mounted thereon and movable up and down, a bearing block movably mounted on the frame, a sustaining wheel provided with an upright stem mount ed to turn in said block, means controlled by the elevation of the plow for moving the block, and means controlled by the movement of the block for turning said stem therein.

10. In a plowing machine, the combination of a frame, a plow sustained thereby and movable up and down, a bearing block movably mounted on the frame, a rear furrow wheel provided with an upright stem mounted to turn in said block and provided withan arm, means for holding said arm against fore and aft movement at a point beyond the stem, and means controlled by the elevation of the plow for moving the 11. In a plowing machine, the combination of a frame, a plow movable up and down relatively thereto, a bearing block mounted on the frame and movable longi' tudinally of the same, a rear sustaining wheel provided with an upright stem 7 mounted to turn in said block, an arm on the stem, means'for holding said arm at a point beyond the axis of the stem against movement longitudinally of the frame, and means acting when the plow is elevated to move the block longitudinally.

12. In a plowing machine, the combination of a frame, a plow sustained thereby and movable up and down, a bearing block pii-oted to the frame on a horizontal transverse axis, a rear furrow wheel provided with an upright stem mounted tov turn in,

said block, an arm on the stem, means for holding said arm against longitudinal movement at a point beyond the axis of the stem, and means controlled by the elevation of the plow for rockingthe bearing block on its axis.

13. In a plowing machine, the combination of a frame, a plow, a swinging bail] and means controlled Joy the movement of the block for changing the angle of the wheel;

provided with a stem mount-ed to turn in said block, means controlled by theielevation (if the plow :for moving said block,

means operating on the mevement of the block to turn .the stem therein, and a plow lifting springacting on the bloek to assist in moving the latter.

In testimdny whereof slgnatul e in ,presenee of two itnesses.

ALEXUS C. LINDGREN..

Witnesses: e 7

L. C. BLANDING, JAMES J. LAMB.

gggpies oflth-is yatent may be obtainedxfor five cents each, by ed dressingfthe Commissioner .of iate nts,

V V V wasningtqn nrqfl I have affixed my Q 

